Locomotive driving box



March 17. 1925. 1,529,991

E. DUCHESNE LOCOMOTIVE DRIVING BOX Filed y 2' v 1922 3 Sheefis-Sheet 1 W ITNESSES m 'j March 17. 1925. 1,529,991

E. DUCHESN E LOCOMOTIVE DRIVING BOX Filed July 27, 1922 v "s Sheets-Sheet 2 wlmsssss March 17, 1925. 1,529,991

E. DUCHESNE LOCOMOTIVE DRI VING BOX Filed July 27, 1922 3 Sheets-Sheet 3 Patented Mar. 17, 1925.

cru'rsn STATES- ERNEST DUGHESNE, OF SCHENEOTADY, NEW YORK.

Locomo'nvn nnrvme 301:.

Application filed July 27, 1922. Serial No. 577,788.

To all whom it may concern:

Be it known that I, ERNEST Duonnsnn, of Schenectady, in the county of Schenectady and State of New York, have invented a certain new .and useful Improvement in Locomotive Driving Boxes, of which improvement the following is a specification.

My invention relates to driving boxes for locomotives, and has for one ofits objects to 1provide a driving box in which. the journa hearing may be renewed without removing the driving box from the locomotive. Another object is to enable the hub face liner of the. driving box to be renewed by dropping the box, without lifting the locomotive; Another object is to provide an improved bearing completely encircling the journal, and to provide additional bearing surface for the driving wheel hub. An-

other object is to provide improved means for lubricating the journal; and a still further object is to simplify the construction whereby. the same may be manufactured more economically and without the use of special tools or machinery.

The improvement claimed is hereinafter fully set forth.

In the accompanying drawings: Figure 1 is a vertical longitudinal section through a drivin box and hub, embodying my invention; 1g. 2, a side elevationof the same, inside of the frame, and showing one half of the box in section;-Fig. 3, a plan; Fig. 4, a transverse section through the upper portion of the box, taken on the line 4-4 of Fig. 1; Fi 5, a view, partly in plan and partly in ho 6, a view, of the same, part1 in. end elevation, and partly in sectlon; ig. 7, another view of t e same, part1 1n side elevation and partly in section; igs. 8, 9 and 10 .plan, side, and end views, respectively, 0 the saddle block, with parts in section; Figs.

'- modified form of saddle block, adapted to .be used with construction of box shown in Fig.

19 20 and 21. 1 driving boxes of the ordinary construction, the main body,1

rizontal section, of-the main: casting with the other parts removed; Fig.

or casing, of the box is of an inverted U s aped section, containing a journal bearing, or brass, of semicircular form, fitting the top half of the axle. When it is desired to renew the bearings, with this construction it is necessary to remove the box from the locomotive, which is a diificult and expensiveoperation,

requiring considerable time and special tools. r

In the practice of my invention, referring descriptively to the specific embodiment thereof which' is herein exemplified, the main body, or casing, 5, of the box, is of a substantially upright U shape, having a tapered bore for the rec iption of two split ournal brasses, 7, 7. he opening in the upper part of the box is narrower than the outside diameter of the journal brasses but slightly wider than the diameter of the ournal bearing on the axle, so that. the box may be placed over the journal when the brasses are not in place.

In the construction shown in Figs. 1 to 18 inclusive, of the drawings, a saddle block 6, is fitted into the open top of the box, an is provided with lugs or projections, 6, at both sides, for engaging corresponding recesses or grooves, 5, at the up r portion of the box, and thereby preventing any lateral movement of the saddle block. The

conical bore of the 'box, 5, and the saddle block, 6. Each se ment, 7, is provided with a lateral flange, g, said flanges extending at right angles, and being fitted between pairs of lugs, 5, on the face of the box, 5, thus preventing rotation of the brasses within the box. The flanges are secured to the box by stud bolts, 8, by means of which the assembled brasses are drawn into the ta- Egnbore of the box, 5, and maintained in engagement therewith. 'A shoulder, 7 F, is forms on the brass, 7, for engaging a 'correspondingrecess in the box, 5, andsaddle, 6 thus preventing the brass being drawn too or into the box, and restraining the saddle from lateral movement. The brasses are bored eccentrically to fit the journal so that their walls are heavier at the top and sides than at the bottom. Orifices, 7, are formed in the lower portion of the brasses, 7, 7, adapted to register with cavities, 5, communicating with lubricant cellars, 5

from which lubricant may be forced to the journal bearing. The cellars, 5 may be in the form of twin cylinders, inclined inward ly and containing pistons, 10, and springs, 11 for exerting pressure upon the plastic lubricant usually employed, and causing it to flow toward the journal, the outer ends of the cylinders, 5, beingclosed b a cover, 13, secured by a central bolt, 9. he position of the piston, 10, is shown by the indicating rod, 12, secured'to the piston, and extending out through the cover, 13.

Another feature of my improvement consists in providing the inside face of the box with a bearing plate or surface, 5, and the inner face of the. saddle block, 6, has a bearing plate, 6, for engaging the wear plate of the wheel hub, so that the hub bearing surface is greatly increased, and presents a continuous wearing face, which completely encircles the 'ournal.

' to the outside diameter of the brasses, 7, 7,

block has a pair of lugs 6, to engage. the

-maintain the block in position.

and is provided with flanges, 5, adapted to engage. corresponding longitudinal grooves, 6, in the saddle lock, when the same is slid into place, longitudinally of the axle. The inside vertical faces of the side walls of theboxare formed on a taper, as

shown in Fig. 19, to fit the taper of the saddle, 6-, as shown in Fig. 22, and the saddle vertical inner face of t e flange, 5, and In other details, this construction is similar to that before described.

It will now be seen that, by the a plication of my improvement, when it is desired to renew the bearings, the wheels need not be removed from the pedestals, as is required with the ordinar construction, but the weight transmitte through the spring rigging may be removed from the journal by inserting blocks or wedges between the frame, 1, andthe'sprin saddle, 3. The brasses, 7, 7, may then withdrawn, by

makin use of the nuts inside of the flange after t e outside ones have been removed, and new brasses applied, the box being maintained in position temporarily by insorting blockin above the pedestaltie, 1

The renewal o brasses may thus be performed in a simplemanner andwithout the .use of s ial tools. L The eature of. the lubricating device, hereinshown and described, but not claimed,

forms the subject matter of a divisional application, filed January 30, 1925, Ser. No. 5,760.

I claim as my invention and desire to secure by Letters Patent:

1. In a journal box for locomotives, an upright U-shaped box member having a tapered boreand having recesses in the-inner faces of its sides, a saddle having a tapered bore received in the top of said box member and having projections on its sides fitted in said recesses of the box member, exteriorly tapered and mortised journal brasses fitted in the taperedbores of the box member and saddle, each of the brasses having a lateral flange, 21 pair of lugs on each sideof the box member formed to receive the res ective flanges of the journal brasses therebetween, horizontally disposed bolts extending through the flanges-and into the box member, to draw the brasses into the bores of the box member and saddle, and a shoulder on the brasses to engage the box having a lateral flange, a pair of lugs on each side of the box member formed to guidingly receive the respective flanges of the brasses therebetween, and horizontally dis osed bolts extending through the flanges and into the box member to enable the brasses to be drawn into the box member.

3. In a journal box for locomotives, an upright U-shaped box member, a saddle in the top of the box member, interengaging means'between the sides of the saddle and the respective adjacent sides of the box member, 'ournal brasses in the saddle and box mem er, a lateral flange on each of the brasses, a pair of lugs on each side of the box member formed to 'uidingly receive the respective flanges of the brasses therebetween, and horizontally disposed bolts extending through the flanges and'into the box member to enable the brasses to be drawn into the box member. V

4. Ina journal box for locomotives, an upright U-shaped box member, a saddle in the top of the box member, journal brasses in the saddle and box member, a lateral flange on each of the brasses, a pair of lugs on each side of. the box member formed to guidingly receive the respective flan es of the brasses therebetween, the lateral anges her, and inner and outer nuts on the bolts,

the inner nuts being disposed in the spaces I between the box member and respective 5. In a journal box, for locomotives, an upright U-shaped box member, a saddle in the top of the box member, journal brasses in the saddle and box member, a lateral flange on each of the brasses, means carried by the box member to guidingly engage the flanges and hold same and thereby the brasses against rotation, means engaging the outer side of the flanges to move the brasserinto the box member, and means engaging,

the inner side of the flanges to move the brasses outwardly from the box member.

ERNEST DUOHESNE. Witnesses W. S. FRAME, J. L. STEELE. 

